From ccf6ee9a6980eff9ec0eeaa8f63c65bff34d9697 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Stefan=20S=C3=B8rensen?= Date: Tue, 3 Nov 2015 09:34:06 +0100 Subject: [PATCH] dp83640: Prune rx timestamp list before reading from it MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The list of rx timestamps are currently only pruned of old entries when a new entry is inserted. If no new entries are added, old timestamps may survive beyond their lifetime, possible causing them to be attached to packets with the same sequence number after a rollover. Signed-off-by: Stefan Sørensen Signed-off-by: David S. Miller --- drivers/net/phy/dp83640.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index 69a2f56e4d68..39ac633e3ef5 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -1398,6 +1398,7 @@ static bool dp83640_rxtstamp(struct phy_device *phydev, return false; spin_lock_irqsave(&dp83640->rx_lock, flags); + prune_rx_ts(dp83640); list_for_each_safe(this, next, &dp83640->rxts) { rxts = list_entry(this, struct rxts, list); if (match(skb, type, rxts)) { -- 2.20.1